The prophecies spoke of a war that announced the twilight of the first gods.The king of Managarm wolves, Fenrir, will kill Odin.Skol will devour the sun with his fiery breath, and Hati will devour the moon with his cold breath.

The giants of fire will burn the worlds. After,the frost giants will plunge the worlds in three winters.

The scene took place from these winters : An eternal cold will reign over Asgard...There remain only a few giants lost in this world.

Two crystals maintain Asgard levitating. Without them it could collapse eternally

Even the garden of the gods is dying...

The statue of the former king, Odin :

Few giants are waiting here

Here there is the source of Lake Urth :

Here, The World Tree, Yggdrasil

And finally, the Bifrost or rainbow bridge.

OK ! It's more a rainbow tunnel than a rainbow bridge X) !!

And at the end of the tunnel, the universe

Have fun on this cold map !

Link :

Spoiler:

pastebin.com/4hHMyW60

_________________A gateway to Winter, When Frost was spectre-grey, The wolf had to kill our Moon.